The Design Of Layer-count/Void-count Fuze System Based On DSP

With the reinforcement of fortifications in modern warfare, it takes new requirements forthe destroying fortifications and facilities. For the opposite two sides in the war,how todestroy the enemy’s key strategic targets effectively so that guarantee own’s side to be wellpositioned to win the war, is a very important aspect to consider. Therefore, weapons of hardtarget penetration, which can hit enemy’s targets hidden in the ground efficiently, become animportant research direction in military field.Hard Target Penetration Fuze is a key part of thepenetration of weapons, since it can improve the damage effect penetration of ammunition byobtaining the best explosion through signal processing. In this case, improving theintelligence of ammunition on the target is the latest development in the direction ofpenetration of ammunition fuze. In this paper, the hard target penetration fuze meterlayer/meter hole system is studied, which deals with the process of Penetration Penetrationacceleration signal acquired by acceleration sensor hardware and DSP systems. When theprevious defined conditions satisfied, the system produces ammunition detonated excitationsignal.The hardware part of fuze meter layer/meter hole system based on DSP includes twoparts: signal conditioning circuitry and DSP hardware circuit. The main role of signalconditioning circuit is to filter the noise signal in raw acceleration signal, which will facilitatethe subsequent signal processing. The DSP circuit system mainly includes four parts: ADcircuit, DSP module, the layers/hole number setter circuit and output circuit. It processes thesignal obtained from the signal conditioning circuitry, and determines the hard layer/holeinformation by related algorithms, then compares to the previously defined layers/holenumber signal, outputs the interference signal finally. In order to get the number of he targetlayer and hole layers precisely, the DSP signal processing algorithm uses a thresholdcomparison method and timing control method so to filter the noise signals. At last, the experiments are tested, in which the actual penetration signal is considered as the system input.And the experiment results show that the presented system can fulfill the counting function offuze meter layer/meter.